Albemarle idles Kemerton lithium hydroxide plant: supply and capex lens for mine planners
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
Albemarle is idling the last operating train at its Kemerton lithium hydroxide plant in Western Australia and placing the facility into care and maintenance immediately, after already mothballing Train 2 in 2024 and cancelling expansion of Trains 3 and 4. The Kemerton refinery converts spodumene feed from the Greenbushes hard-rock mine, where Albemarle holds both equity and 50% of offtake rights, into battery-grade lithium hydroxide for a Western supply chain. Albemarle expects the shutdown to be accretive to adjusted EBITDA from Q2 2026, with 2026 lithium hydroxide volumes backfilled from other global plants.
Technical Brief
- Train 2 had already been placed into care and maintenance during 2024, reducing conversion redundancy.
- Expansion halt for Trains 3 and 4 removes planned incremental hydroxide conversion capacity at Kemerton.
- Mining interests at Greenbushes and Wodgina, and WA exploration tenements, remain operational and “core” to strategy.
- CEO attributes the decision to extended lithium price volatility and cost pressure on Western hard-rock converters.
Our Take
Albemarle’s role in Chilean R&D on direct lithium extraction and rare earth recovery, as noted in the Corfo-backed project from January 2026, signals that while Kemerton in Western Australia is being idled, the company is still allocating capital and technical effort toward next-generation lithium processing routes elsewhere.
Within our mining database, lithium and lithium hydroxide items are a relatively small subset compared with bulk commodities, so a major processing pause in Western Australia stands out as one of the more consequential operational shifts in the battery-materials space rather than just another project delay.
The decision to target adjusted EBITDA accretion from Kemerton changes by the second quarter of 2026 suggests Albemarle is aligning Australian processing capacity with a medium-term price and demand recovery window, which operators at upstream assets like Greenbushes and Wodgina will need to factor into their own expansion and offtake planning.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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